Caster for tubular legs for furniture.



' I A. B. Ems, GASTER FOR TUBULAR LEGS FOB FURNITURE.

APPLIGATION FILED APE. 30,1908.

fatented; Fab. 2, 1909 unrrrzn srs rnsrnrnn'r enrich.

ALBERT B. DIS-S, OF NEWARK,- NuW JERSEY, Assicn-on 'ro unrvlarslul (:As'rm d; rot: x our COMPANY, A CORPORATION or NEW JERSEY.

SASTEEFOE TUBULA R- LEGS FOP; FURNITURE.

, novelists.

To all whom it may concern: I

Be it known that I, ALBERT B. Drss, e citizen of the United. Ststes, residing at Newark, New Jersey, have invented. certain new and useful improvements in Casters for Tubular Legs for llu'rniture, of which. the following is n1 specificetion, (Case 4,) ac companied by drawings.

The invention relates to the class of cesters having pintl'es and means for supporting and holding the pintle within at relatively large tubular-leg which the caster is to s ort. It is customer to secure around tile oot of tubular legs or to cast thereu on en ennulsr ornementetion or ornaments collar which is termed e leg mount.

The ohjgct of the present invention is to combine it eleg mount in an improved ouster construction in such a. way as not only to obviate the need of separately securing the leg mount to the leg, but also in the preferred form to utilize the leg mount as a, means ct centering the pintle sndleg. This the presentinvention accomplishes by secure ing the leg mount to e detachable socket which fits within and is retained by the tubular leg end which receives and de tschehl holds the caster pintle and preferahly 0th centers the pintlent the foot of thelegend also supports the weight ottheleg and transmits it to the lower end of the pintle. I s In my co-pending spplicetion No. 430,135

"I have described a. caster having a leg mount secured to itspintle and e socket detach ehly holding the pintle and adopted to fit and he held within the interior of the tubular leg, and l have claimed the some generically end the resent invention is not intended to cover or nominate enything'therein claimed.

In the drawings, Fi ure 1 is e side elevation partly in centra section of a. caster structure emho'dying the present invention. Fig. 2 is a side elevation of the combined.

spring socket sndleg mount of l i 1. Fig. 3 is a view of the some -st right angles,

omitting the leg mount. Fig. l is a plan View of the leg mount only. Fig. 5 is a. cross section of the same. Fig. 6 shows a modified detail of construction.

In. this preferred construction the caster wheel 0, jsws D and pintle F with its shoulder or collur G of any suitable form, are detechehly held to the socket member and the Specification of Letters Pdtent. Application filed'npril 30, 1908. Serigil No. 430,136.

- Patented Feb. 2, 1909.

' soclrctlmember combines the leg mount ll and tlr'e socket roper J. The socl-xet mcmher J :fits tightly being; jammed therein and sufficiently re' silient to he held in place by friction against the inner wall of the le It may he of the bul d or barrel-like iorm mode of sheet stee pressed to the shape shown, the two intern. halves having a. supporting hearing sigfsinst each other, as st the shoulders K and at the lower endsns at M. T he slits or openings 0 add to the resilience of the socket but these testures and the general shape of the socket are old. The head of the pintle F has it heorin laterally at the upper end ot the socketnn is held to the socket by the spring leaves P which slip over the rounded heed .ofthe pintlesnd engage the neck of the,

pintle, as shown by the dotted lines in his. 3. At the lower end the socket is united, prefersloly as shown, to the leg mount. This may be accomplished by providing tongues R which project through openings in the leg mount and are turned over, us plainly seen in Figs. 2 end 3, so as to prevent their being withdrawn from'the opoxungs S. Prefernhly the openings Sffit the tongues loosely so as to allow some, Jlsy for the lower end of the springsocket"; mt this is not essential as the sl-igl l-ly bulging sides of the spring socket may sil'ord all the necessary spring for accommodating the slight variations in the interiors of the-tubes which the socket is designed to fit.

The leg mount'H at its turned-up or collar portion surrounds and approximately fits the w e the diskportion ts the pintle by moons of the central opening T (Fig. 4). Preferably the side thrusts produced when the caster is subjected to weight u on the leg are supported at the foot of the op; solely by means of the leg mount H, the disk oi which transmiis the thrusts between the pintle and the outer surface of the le and centers the. low 1 will of the pintle w mile the u or end of the pintle is sufficiently centered y-mcuns of the socket J.

In operation the socket may he first thrust into the leg for which it is fitted until the leg mount ll receives and surrounds the extreme end of the le then the pintle may he thrust through thello socket until its head is received and hold by eg L when in place, surrounds and Within the tullulcr log; L,

le T and up into the slpring the springs P so that it will not fall out. Preferably the pintle will not have an endthrust-bearing at the upper end of the socket and the entire Weight of the leg is supported on the leg mount member which forms the leg-supporting disk, the leg mount thus performing the triple function of centering the pintle and leg, su iporting the wei ht and transmitting it to t e shoulder or col ar G of the pintle, and securing the lower ends of the socket so they cannot pass too far up into the leg. The socket When in use detachably holds the pintle in place and centers its upper endv within the leg and by means of friction against the inner wall of the leg and by its attachment to the leg mount it holds both itself and the leg mount in position in respect to the leg.

it will 3e seen that in the preferred form described the socket is a hollow or openwork frame of spring material ca white of being jammed within-the tubular leg and affording the necessary retaining friction and of retaining and centering idle head of the pintlc without being broken or deformed by the weights which the leg is called upon to bear.

big. 6 shows another way of'securing the leg mount H to the socket or frame J, consisting in this instance of outturned flanges R on the lower ends of the socket or frame which are of such Width that the inturned edge ll of the leg mount, which I have shown in cross section, will not allow them to be withdrawn. This constitutes a very loose way of securing the leg mount to the frame. As it cannot be specifically claimed as a modification in this application, it forms the subject matter of a specifically separate invention and a )plication,- but I herein claim it generically with the other means shown.

I make no claim to the particular form of socket or frame, asthe general form lustrated is indeed already well known and obviously many other suitable forms may be substituted.

. In defining the invention in the following claims I do not mean to make any distinction i l l I l l l g as between sockets and frames, well-known in n'ian'y forms.

I claim and desire to secure the following:

1. caster having a combined leg mount and disk for centering and supporting the foot of a tubular log, a spring socket or frame secured to such combined mount and disk, and pintle which is centered in the said combined. mount and disk and in the said socket or frame and securedthcrcto.

2. A caster having a combined retaining socket -or frame and leg mount provided with means for detachably securing them to a tubular leg and to the caster pintle.

3. A caster having a combinml socket or frame anc leg mount adapted to be frictionally held to a tubular leg, said leg mount surrounding and centering the leg, and the intlc detachably secured to the socket or frame and received in and centered by the leg mount.

i. A caster having a retaining socket or frame, leg mount and pintlc, the socket or frame being secured to the mount and both being detachably securing the pintlc, and adapted to fit and be frictionally retained within a tubular leg, the leg mount being adapted to surround and. center the foot of the leg, and the pintle being centered by the socket or frame and the leg mount.

5. A caster having a retaining socket or frame adapted to fit the tubular log, a pintlc 161d therein and a leg mount for surroundingthe foot of the leg directly secured to the said. socket or frame.

6. A caster having a retaining socket or frame adapted to it the tubular eg, a pintlc held therein and a log mount for surrounding the foot of the log directly secured to the said socket or frame by means of perforations in the said .mount and cooperating projections on the said socket or frame. 7

In testimony whereof I have signed this specification in the presence of two subscrib inn witnesses, April 29, 1908.

ALBERT l3. DlSS.

Witnesses HAROLD BINNEY, E. VAN ZANDT. 

